Gustav Conrad Bauer (18 November 1820, Augsburg – 3 April 1906, Munich) was a German mathematician,[1] known for the Bauer-Muir transformation[2][3] and Bauer's conic sections. He earned a footnote in the history of science as the doctoral advisor (Doktorvater) of Heinrich Burkhardt, who became one of the two referees of Albert Einstein's doctoral dissertation.